Discharging device for driers.



PATENTED NOV. 20, 1906.

M. F. KBVLIN. DISOHARGING DEVICE FOR DRIERS.

APPLIOATION FILED 1030.26, 1905.

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UNITED STATES MATHEW F. KEVLIN,

THE JAMES HUNTER CHUSE' TS. A CORPORATION OF PATENT OFFICE.

MASSA- DISCHARGING DEVICE FOR DRIERS.

Specification of Letters Patent Patented Nov. 20, 1906.

Application filed December 26,1905. Serial No. 293,190-

1'0 all w/un'rt it may cwccern- Be it known that I, MATHEW F. KEVLIN, acitizen of the United States, residing at North Adams, in the county ofBerkshire, State of Massachusetts, have invented a certain new anduseful Improvement in Discharging Devices for following is aspecification, reference being bad therein to the accompanying drawings.

A well-known type of drier for wool. and other substances in use at thepresent time comprises, essentially, a moving carrier in the shape of ahorizontal annular perforated table, upon which is spread the wool orother stock to be dried, the said annular table being located within anannular chamber'of an inclosing casing and having given thereto a slowrevolving motion. Devices are pro vided for producing a circulation ofheated air within the casing and through the table and the stock restingthereon. The stock to be dried is supplied to the table at one point inthe circuit of the drier and the dried stock is discharged from thetable at another point in the said circuit, usually closely adjacent thefirst point, after having been carried around within the annular chamberaforesaid. Heretofore in practice the discharge of the dried stock fromthe'table has been effected by a transversely-directed blast of airoperating to blow the said stock outward from the surface of the tableat the place of discharge. In some cases the results of the employmentof this blast have been unsatisfactory on account of the dust and thesmall particles of wool with which the atmosphere becomes filled throughthe action of the blast. Various constructions and arrangements ofdischarging devices have been contrived to take the place of theair-blast device, but none thereof has given entire satisfaction inpractice.

My invention has for its object to provide a discharger of novel andimproved character and construction, which shall be free from thedrawbacks and disadvantages that are incident to the employment of theblast of air, as well as superior to the other devices heretoforeproposed for the purpose.

The inventlon is illustrated in the drawings, in which Flgure 1 shows inplan a portion of a drier of the type before mentioned with an em-Driers, of which. the

I bodiment of the invention applied thereto. 1 Fig. 2 is a detail view,partly in vertical sec- 1 tion and partly in elevation, showing themeans for reciprocating the discharger. Fig. 3 is a sectional detail ofthe grooved and slotted crank-arm.

Having reference to the drawings, at 1 is l shown a portion of theannular perforated table to which reference has been made. At 1 2 3,respectively, are represented the outer and inner casing-shells,inclosing between them the annular chamber within which the said tableis located and wherein it is slowly 1 revolved by driving connections.(Not herein shown.) At 4 is one of the runs'which are affixed to thesaid shells, upon which runs the marginal portions of the table rest andon which the said portions slide during the revolving movement of thetable. The parts thus referred to are or may be as usual.

In Fig. l the radial line on which the stock is fed to the table isindicated at 5.

The hole which is formed in the exterior of 5 the casing to permit ofthe discharge of the dried stock fromthe surface of the table isindicated at 6 in Fig. 1. 1 My discharger 7 consists of a plate or stripextending across the table I from the inner shell 3 to and somewhatbeyond the outer edge of the table. Its outer end projects I through thehole 6 in the outer portion of the 1 casing. The said dischargeroccupies an oblique position with respect to the table, it beinginclined in the direction in which the table revolves from ner end isconnected with the said inner shell This inclination I l l to thedischarging-point.

of the discharger enables the stock upon the table to be carried by therevolution of the table against the outer or acting face of thedischarger into position at the outer side of the discharger for beingcaused to discharge through hole 6. The said inclination defleets thestock outwardly through the said.

hole as the stock is pressed against the said acting face by therevolving movement of the table.

For some kinds of stock a fixed deflector may be employed. With theother kinds of stock, however, there is'a tendency on the part of thestock to pass under the deflector and to remain i table continues torotate, the portion or porthe point at which its inheld by the latterwhile the J to the discharger.

tions thus held wedging under the deflector, so as to force it upwardand to raise its lower edge from proper working position at the surfaceof the table. To overcome this tendency and facilitate the delivery ofthe stock from the table, I make provision for communicating areciprocating movement This movement is provided for by constructing thedischarger to swing with relation to the point of attachment 71, Fig. 1,of its inner end to the inner shell 3, and by the employment in connection with the discharger of operating meanssuch, for instance, as thatwhich is represented in the drawingscomprising, essentially,'a rotatingcrank which is operatively connected to the discharger.

In the drawings, 72 is a connecting-link, which at one end thereof isjoined to the outer end of the discharger and at the other end thereofto the crank-pin 73, carried by the crank-arm 74, the said crank-armbeing fast upon the upper end of the short vertical shaft 75, which issupported in the bearings 76 76, forming part of a bracket or stand 77,attached to the outer shell 2 of the casing. Crank-arm 7 4 islongitudinally grooved and slotted, as shown in Figs; 2 and 3, to permitthe crank-pin 73 to be radially adjusted in Well-known manner to varythe length of stroke of the deflector. The shaft 75 is rotated throughthe engagement of a bevelpinion 78, which is fast thereon, with abevelgear 79, which is fast upon the outer end of a short horizontalshaft 80, the latter being mounted in a bearing 81, with which bracketor stand 77 is formed, and being furnished at its inner end with aspur-pinion 82, meshing with the teeth 83, which are provided upon theunder side of the table for engagement with the rotating gear-wheel (notshown) by means of which the table is revolved. As the table revolves ittransmits rotary motion through the connections which have beendescribed to the upright shaft 75 and its crank. Each swing of thedischarger in the direction opposite that in which the table is movingpushes the stock which is adjacent the discharger backward and outwardupon the table, thereby'facilitating the movement of the stocktransversely toward and through the discharge-opening 6. Thereciprocating movement of the discharger operates to prevent tendencyofthe stock to unduly mass up against the acting face of the dischargerand overcomes the tendeno T of portions of the stock to be carried underthe lower edge of the discharger by the action of the moving table.

What is claimed is 1. The combination, in a drier, with an advancingcarrier, of an obliquely-disposed discharger extending across the saidcarrier, and means to reciprocate the said discharger.

2. The combination, in a drier, with the revolving table, of theobliquely-disposed discharger extending across the said table, and therotating crank operatively connected with the said discharger andoperating to reciprocate the latter.

In testimony whereof I afliX my signature in presence of two witnesses.

MATHEW F. KEVLIN.

Witnesses:

O. D. CADY, GEO. C. HADLEY.

